Industrial Automatic Control Systems and Controllers Annotation << Back Information Modeling of ProtectiveScreens to Prevent the Leakage ofInformation on Technical Channels T.I. Kasatkina, R.N. Andreev, A.S. Dubrovin, V.I. Sumin, A.P. Ryzhkov The article describes the options for information modeling of the characteristics of the designs of planar protective screens of a mutually complementary type. It was shown that the protective screen in its physical interpretation represents a spatial frequency fi lter, during which the information signal undergoes amplitude and phase distortions, as well as partial refl ection. The changes in the information signal, at the same time, are similar in their principle to distortions in the coding systems of the radio engineering signal. When restoring the impulse response of an information signal, partially refl ected, but partially transmitted through such a screen, it is diffi cult to extract information from it due to unknown parameters of the spacefrequency fi lter. The article proposes several types of dispersion screens that can be used to protect information contained in broadband information signals while providing transparency windows in narrow frequency bands, that is, in the presence of an information system with a radio channel for receiving and transmitting information. Keywords: signal; information leakage channel; modeling; electromagnetic wave; the screen. Contacts: E-mail: kasatkinatatian@googlemail.com Pp. 35-42.